Liquid crystal display panel and electronic paper

ABSTRACT

A liquid crystal display panel is provided. The liquid crystal display panel includes: a first substrate and a second substrate arranged opposite to each other, and a liquid crystal layer and a plurality of strip-shaped spacers disposed between the first substrate and the second substrate. In the liquid crystal display panel, there is an overlapping area between an orthographic projection of a first signal line on a target base and an orthographic projection of a second signal line on the target base, and an orthographic projection of the strip-shaped spacer on the target base is not overlapped with the overlapping area.

CROSS REFERENCE TO RELATED APPLICATION

This application is a continuation application of U.S. application Ser.No. 17/498,367, filed on Oct. 11, 2021, which is incorporated herein byreference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of display technologies, andmore particularly to a liquid crystal display panel and an electronicpaper.

BACKGROUND

A liquid crystal display panel is a common display panel. It hasadvantages of a lower manufacturing cost and a simpler manufacturingprocess, and thus has occupied a larger market share in the field ofdisplay technologies.

SUMMARY

Embodiments of the present disclosure provide a liquid crystal displaypanel and an electronic paper. The technical solutions are as follows.

In an aspect of the present disclosure, a liquid crystal display panelis provided. The liquid crystal display panel includes a plurality offirst signal lines and a plurality of second signal lines, wherein theplurality of first signal lines and the plurality of second signal linesare arranged to intersect, the plurality of first signal lines and theplurality of second signal lines are configured to define a plurality ofsub-pixel regions on the liquid crystal display panel, and the sub-pixelregion includes four boundaries; and the liquid crystal display panelincludes: a first substrate and a second substrate disposed opposite toeach other, and a liquid crystal layer and a plurality of strip-shapedspacers disposed between the first substrate and the second substrate,the strip-shaped spacer extending along one boundary of the sub-pixelregion, wherein there is an overlapping area between an orthographicprojection of the first signal line on a target base and an orthographicprojection of the second signal line on the target base, an orthographicprojection of the strip-shaped spacer on the target base is notoverlapped with the overlapping area, and the target base is a base ofone of the first substrate and the second substrate.

Optionally, the plurality of strip-shaped spacers includes, fourstrip-shaped spacers corresponding to the four boundaries of thesub-pixel region, and the strip-shaped spacer extends along acorresponding boundary of the sub-pixel region.

Optionally, one strip-shaped spacer is disposed between any two adjacentsub-pixel regions.

Optionally, a length of the strip-shaped spacer ranges from one-third toone-half of a length of the corresponding boundary of the sub-pixelregion.

Optionally, the liquid crystal display panel further includes a sealantframe and a strip-shaped barrier disposed between the first substrateand the second substrate, wherein the sealant frame includes a liquidcrystal inlet, the strip-shaped barrier, the liquid crystal layer andthe strip-shaped spacer are all disposed in an area enclosed by thesealant frame, and the strip-shaped barrier is disposed close to theliquid crystal inlet.

Optionally, the liquid crystal display panel further includes: a sealingstrip connected to the sealant frame, and the sealing strip isconfigured to seal the liquid crystal inlet.

Optionally, an extending direction of the strip-shaped barrier isparallel to an opening surface of the liquid crystal inlet.

Optionally, an extending length of the strip-shaped barrier is less thana width of the liquid crystal inlet.

Optionally, the strip-shaped barrier and the strip-shaped spacer arearranged in a same layer and made of a same material.

Optionally, one of the first substrate and the second substrate includesa black matrix, and the orthographic projection of the strip-shapedspacer on the target base is within an orthographic projection of theblack matrix on the target base.

Optionally, the strip-shaped spacer is fixedly connected to thesubstrate including the black matrix.

Optionally, the first substrate includes, a first base, and theplurality of first signal lines, a first insulating layer and aplurality of first strip-shaped electrodes disposed on the first baseand stacked in a direction perpendicular to and going away from thefirst base, wherein the plurality of first signal lines are electricallyconnected in one-to-one correspondence to the plurality of firststrip-shaped electrodes, and an extending direction of the first signalline is parallel to an extending direction of a corresponding firststrip-shaped electrode.

Optionally, the first signal line includes a plurality of firstconnecting portions, the first insulating layer includes a plurality offirst vias in one-to-one correspondence with the plurality of firstconnecting portions, and the first connecting portion is electricallyconnected to a corresponding first strip-shaped electrode through acorresponding first via.

Optionally, the second substrate includes: a second base, and theplurality of second signal lines, a second insulating layer and aplurality of second strip-shaped electrodes disposed on the second baseand stacked in a direction perpendicular to and going away from thesecond base, wherein the plurality of second signal lines areelectrically connected in one-to-one correspondence to the plurality ofsecond strip-shaped electrodes, and an extending direction of the secondsignal line is parallel to an extending direction of a correspondingsecond strip-shaped electrode.

Optionally, the second signal line includes a plurality of secondconnecting portions, the second insulating layer includes a plurality ofsecond vias in one-to-one correspondence with the plurality of secondconnecting portions, and the second connecting portion is electricallyconnected to a corresponding second strip-shaped electrode through acorresponding second via.

Optionally, the extending direction of the first strip-shaped electrodeis perpendicular to the extending direction of the second strip-shapedelectrode.

Optionally, the liquid crystal layer includes: bistable cholestericliquid crystal molecules.

In another aspect of the present disclosure, a liquid crystal displaypanel is provided. The liquid crystal display panel includes: a firstsubstrate and a second substrate disposed opposite to each other; and aliquid crystal layer, a sealant frame, and a strip-shaped barrierdisposed between the first substrate and the second substrate, whereinthe sealant frame includes a liquid crystal inlet, the liquid crystallayer and the strip-shaped barrier are disposed in an area enclosed bythe sealant frame, and the strip-shaped barrier is disposed close to theliquid crystal inlet.

Optionally, the liquid crystal display panel further includes: a sealingstrip connected to the sealant frame, and the sealing strip isconfigured to seal the liquid crystal inlet.

In yet another aspect of the present disclosure, an electronic paper isprovided. The electronic paper includes: a power supply component and aliquid crystal display panel. The power supply component beingconfigured to supply power to the liquid crystal display panel, and theliquid crystal display panel includes a plurality of first signal linesand a plurality of second signal lines, wherein the plurality of firstsignal lines and the plurality of second signal lines are arranged tointersect, the plurality of first signal lines and the plurality ofsecond signal lines are configured to define a plurality of sub-pixelregions on the liquid crystal display panel, and the sub-pixel regionhas four boundaries; and the liquid crystal display panel includes: afirst substrate and a second substrate disposed opposite to each other;and a liquid crystal layer and a plurality of strip-shaped spacersdisposed between the first substrate and the second substrate, thestrip-shaped spacer extending along one boundary of the sub-pixelregion, wherein there is an overlapping area between an orthographicprojection of the first signal line on a target base and an orthographicprojection of the second signal line on the target base, an orthographicprojection of the strip-shaped spacer on the target base is notoverlapped with the overlapping area, and the target base is a base ofone of the first substrate and the second substrate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a top view of a liquid crystal display panel in the relatedart;

FIG. 2 is a cross-sectional view at A-A′ of the liquid crystal displaypanel shown in FIG. 1 ;

FIG. 3 is a top view of another liquid crystal display panel in therelated art;

FIG. 4 is a cross-sectional view at B-B′ of the liquid crystal displaypanel shown in FIG. 3 ;

FIG. 5 is a top view of yet another liquid crystal display panel in therelated art;

FIG. 6 is a cross-sectional view at C-C′ of the liquid crystal displaypanel shown in FIG. 5 ;

FIG. 7 is a top view of a liquid crystal display panel according to anembodiment of the present disclosure;

FIG. 8 is a cross-sectional view at D-D′ of the liquid crystal displaypanel shown in FIG. 7 ;

FIG. 9 is a top view of another liquid crystal display panel accordingto an embodiment of the present disclosure;

FIG. 10 is a cross-sectional view at E-E′ of the liquid crystal displaypanel shown in FIG. 9 ;

FIG. 11 is a top view of a substrate in the liquid crystal display panelshown in FIG. 9 ;

FIG. 12 is a top view of another substrate according to an embodiment ofthe present disclosure;

FIG. 13 is a top view of a first substrate in the liquid crystal displaypanel shown in FIG. 9 ;

FIG. 14 is a top view of a second substrate in the liquid crystaldisplay panel shown in FIG. 9 ;

FIG. 15 is a schematic diagram of a film layer structure of a liquidcrystal display panel according to another embodiment of the presentdisclosure;

FIG. 16 is a top view of a substrate in the liquid crystal display panelshown in FIG. 15 ; and

FIG. 17 is a top view of another substrate according to anotherembodiment of the present disclosure.

DETAILED DESCRIPTION

In order to make the purpose, technical solutions, and advantages of thepresent disclosure clearer, the embodiments of the present disclosurewill be described in detail below with reference to the accompanyingdrawings.

Referring to FIG. 1 and FIG. 2 , FIG. 1 is a top view of a liquidcrystal display panel in the related art, and FIG. 2 is across-sectional view at A-A′ of the liquid crystal display panel shownin FIG. 1 . The liquid crystal display panel 00 may include a firstsubstrate 01 and a second substrate 02 disposed opposite to each other,and a liquid crystal layer 03 disposed between the first substrate 01and the second substrate 02.

The first substrate 01 may include: a first base 011, and a plurality offirst signal lines 012, a first insulating layer 013 and a plurality offirst strip-shaped electrodes 014 disposed on the first base 011 andstacked in a direction perpendicular to and going away from the firstbase 011. The plurality of first signal lines 012 are electricallyconnected in one-to-one correspondence to the plurality of firststrip-shaped electrodes 014.

The second substrate 02 may include: a second base 021, and a pluralityof second signal lines 022, a second insulating layer 023 and aplurality of second strip-shaped electrodes 024 disposed on the secondbase 021 and stacked in a direction perpendicular to and going away fromthe second base 021. The plurality of second signal lines 022 areelectrically connected in one-to-one correspondence to the plurality ofsecond strip-shaped electrodes 024.

The extending direction of the first strip-shaped electrode 014 isperpendicular to the extending direction of the second strip-shapedelectrode 024.

The liquid crystal layer between the first substrate 01 and the secondsubstrate 02 is composed of regularly arranged liquid crystal molecules.However, since the liquid crystal molecules in the liquid crystal layer03 are relatively sensitive to external pressure, when the liquidcrystal display panel is pressed, the arrangement of the liquid crystalmolecules in the liquid crystal display panel is be affected, whichresults in a poor display effect of the liquid crystal display panel.

For example, in a scenario, in order to reduce power consumption of theliquid crystal display panel, bistable cholesteric liquid crystalmolecules with reflective performance may usually be employed to formthe liquid crystal layer 03. In this way, the liquid crystal displaypanel does not need a backlight, and can achieve a display function onlythrough reflection of ambient light by the bistable cholesteric liquidcrystal molecules. However, the bistable cholesteric liquid crystalmolecules are extremely sensitive to external pressure. If the liquidcrystal display panel is pressed with excessive external pressure, thebistable cholesteric liquid crystal molecules in the liquid crystaldisplay panel tend to be arranged in a planar state, and the arrangementof liquid crystal molecules in the liquid crystal layer 03 is destroyed,resulting in a poor display effect of the liquid crystal display panel.

Therefore, in order to avoid the phenomenon that the arrangement of theliquid crystal molecules in the liquid crystal layer 03 changes when thedisplay panel is pressed with large external pressure, a spacer may beprovided between the first substrate 01 and the second substrate 02. Thespacer may offset a part of the external pressure applied to the liquidcrystal display panel, thereby reducing the probability that thearrangement of the liquid crystal molecules changes.

For example, referring to FIG. 3 and FIG. 4 , FIG. 3 is a top view ofanother liquid crystal display panel in the related art, and FIG. 4 is across-sectional view at B-B′ of the liquid crystal display panel shownin FIG. 3 . The shape of an orthographic projection of the spacer 04disposed between the first substrate 01 and the second substrate 02 on atarget base (the target base may be the first base 011 or the secondbase 021) is circular, and the orthographic projection of the spacer 04on the target base overlaps with an orthographic projection of the firstsignal line 012 on the target base and an orthographic projection of thesecond signal line 022 on the target base. In this case, in order toprevent the pixel aperture ratio from being reduced by the spacer 04 andprevent the contrast and reflectivity of the liquid crystal displaypanel from decreasing, the area of the orthographic projection of thespacer 04 on the target base should not be too large. However, when thearea of the orthographic projection of the spacer 04 on the target baseis small, the contact area between the spacer 04 and the first substrate01, and the contact area between the spacer 04 and the second substrate02 are small. Therefore, the effect of supporting the first substrate 01and the second substrate 02 by the spacer 04 is poor, and the liquidcrystal molecules are still susceptible to external pressure.

In order to increase the contact area between the spacer 04 and thefirst substrate 01, and the contact area between the spacer 04 and thesecond substrate 02, another liquid crystal display panel is provided inthe related art. As shown in FIG. 5 and FIG. 6 , FIG. 5 is a top view ofanother liquid crystal display panel in the related art, and FIG. 6 is across-sectional view at C-C′ of the liquid crystal display panel shownin FIG. 5 . The shape of the orthographic projection of the spacer 04disposed between the first substrate 01 and the second substrate 02 onthe target base is a cross shape, a part of the orthographic projectionof the spacer 04 on the target base overlaps with both of theorthographic projections of the first signal line 012 and the secondsignal line 022 on the target base, and a part of the orthographicprojection of the spacer 04 on the target base overlaps with theorthographic projection of only one of the first signal line 012 and thesecond signal line 022 on the target base. In this case, the contactarea between the spacer 04 and the first substrate 01 and the contactarea between the spacer 04 and the second substrate 02 may be increasedwithout affecting the pixel aperture ratio. However, since a part of theorthographic projection of the spacer 04 on the target base overlapswith both of the orthographic projections of the first signal line 012and the second signal line 022 on the target base, while a part of theorthographic projection of the spacer 04 on the target base overlapswith the orthographic projection of only one of the first signal line012 and the second signal line 022 on the target base, the thickness ofthe spacer 04 between the two substrates is not uniform, the effect ofsupporting the first substrate 01 and the second substrate 02 by spacer04 is still poor, and the liquid crystal molecules are still susceptibleto external pressure.

Referring to FIG. 7 and FIG. 8 , FIG. 7 is a top view of a liquidcrystal display panel according to an embodiment of the presentdisclosure, and FIG. 8 is a cross-sectional view at D-D′ of the liquidcrystal display panel shown in FIG. 7 . The liquid crystal display panel000 includes a plurality of first signal lines 101 and a plurality ofsecond signal lines 201, and the plurality of first signal lines 101 andthe plurality of second signal lines 201 are arranged to intersect. Theplurality of first signal lines 101 and the plurality of second signallines 201 are configured to define a plurality of sub-pixel regions 000a in the liquid crystal display panel 000, and the sub-pixel region 000a has four boundaries. For example, any two adjacent first signal lines101 and any two adjacent second signal lines 201 may enclose onesub-pixel region 000 a. The liquid crystal display panel 000 mayinclude: a first substrate 100 and a second substrate 200 which aredisposed opposite to each other, and a liquid crystal layer 300 and aplurality of strip-shaped spacers 400 disposed between the firstsubstrate 100 and the second substrate 200.

The strip-shaped spacer 400 extends along one boundary of the sub-pixelregion 000 a.

There is an overlapping area between the orthographic projection of thefirst signal line 101 on a target base and the orthographic projectionof the second signal line 201 on the target base. The orthographicprojection of the strip-shaped spacer 400 on the target base is notoverlapped with the overlapping area. That is, the orthographicprojection of the strip-shaped spacer 400 on the target base overlapswith the orthographic projection of one of the first signal line 101 andthe second signal line 201 on the target base, and does no overlap withthe orthographic projection of the other one of the first signal line101 and the second signal line 201 on the target base.

The target base may be a base in one of the first substrate 100 and thesecond substrate 200. For example, the first substrate 100 may include afirst base 103, and the plurality of first signal lines 101 disposed onthe first base 103, and the second substrate 200 may include a secondbase 202, and the plurality of second signal lines 201 disposed on thesecond base 202. Here, one of the first base 103 and the second base 202may be the target base.

In the embodiment of the present disclosure, the orthographic projectionof the strip-shaped spacer 400 on the target base is not overlapped withthe overlapping area between orthographic projection of the first signalline 101 on the target base and the orthographic projection of thesecond signal line 102 on the target base. Therefore, there is only onelayer of signal lines at the position of the strip-shaped spacer 400, sothat the thickness of the strip-shaped spacer 400 between the firstsubstrate 100 and the second substrate 200 is relatively flat. Inaddition, since the contact area between the strip-shaped spacer 400 andthe first substrate 100, and the contact area between the strip-shapedspacer 400 and the second substrate 200 are relatively large, thestrip-shaped spacer 400 has stronger pressure resistance. Therefore, theeffect of supporting the first substrate 100 and the second substrate200 by the strip-shaped spacer 400 is better.

In summary, the liquid crystal display panel according to the embodimentof the present disclosure includes: a first substrate and a secondsubstrate arranged opposite to each other, and a liquid crystal layerand a plurality of stripe-shaped spacers disposed between the firstsubstrate and the second substrate. Since orthographic projections ofthe plurality of strip-shaped spacers on the target base is notoverlapped with the overlapping area between the orthographic projectionof the first signal line on the target base and the orthographicprojection of the second signal line on the target base, there is onlyone layer of signal lines at the position of the strip-shaped spacer inthe liquid crystal display panel, so that the thickness of thestrip-shaped spacer between the first substrate and the second substrateis relatively flat. In addition, the contact area between thestrip-shaped spacer and the first substrate and the contact area betweenthe strip-shaped spacer and the second substrate are relatively large,so that the strip-shaped spacer has stronger pressure resistance. Inthis way, the strip-shaped spacer has a better effect in supporting thefirst substrate and the second substrate, which improves the pressureresistance of the liquid crystal display panel, thereby effectivelyreducing the probability that the arrangement of the liquid crystalmolecules in the liquid crystal layer changes, and improving the displayeffect of the liquid crystal display panel.

In embodiments of the present disclosure, referring to FIG. 9 and FIG.10 , FIG. 9 is a top view of another liquid crystal display panelaccording to an embodiment of the present disclosure, and FIG. 10 is across-sectional view at E-E′ of the liquid crystal display panel shownin FIG. 9 . The plurality of strip-shaped spacers 400 may include fourstrip-shaped spacers 400 corresponding to four boundaries of thesub-pixel region 000 a, and each strip-shaped spacer 100 extends along acorresponding boundary of the sub-pixel region 000 a. In someembodiments, there are four strip-shaped spacers corresponding to fourboundaries of each sub-pixel region 000 a. In this way, the contact areabetween the strip-shaped spacers 400 and the first substrate 100 and thecontact area between the strip-shaped spacers 400 and the secondsubstrate 200 are further increased, and the pressure resistance of theliquid crystal display panel is improved.

In the present disclosure, one strip-shaped spacer 400 is disposedbetween any two adjacent sub-pixel regions 000 a In this case, thearrangement of the plurality of strip-shaped spacers 400 between thefirst substrate 100 and the second substrate 200 can be simplified,thereby simplifying the process of preparing the strip-shaped spacers400.

In some embodiments, the shape of the orthographic projection of thestrip-shaped spacer 400 on the target base may be a rectangle or anellipse. When the shape of the orthographic projection of thestrip-shaped spacer 400 on the target base is a rectangle, the long sideof the rectangle is parallel to the corresponding boundary of thesub-pixel region 000 a. When the shape of the orthographic projection ofthe strip-shaped spacer 400 on the target base is an ellipse, the majoraxis of the ellipse is parallel to the corresponding boundary of thesub-pixel region 000 a.

In the present disclosure, the extending length of the strip-shapedspacer 400 ranges from one-third to one-half of the length of thecorresponding boundary of the sub-pixel region 000 a. In this way, it isensured that when liquid crystal is poured between the first substrate100 and the second substrate 200, liquid crystal molecules may entereach sub-pixel region 000 a.

Optionally, the length of each strip-shaped spacer 400 between the firstsubstrate 100 and the second substrate 200 is the same. In this way, itis ensured that the liquid crystal filled in each sub-pixel region 000 ais evenly distributed, which further improves the display effect of theliquid crystal display panel.

In the embodiments of the present disclosure, referring to FIG. 11 ,FIG. 11 is a top view of a substrate in the liquid crystal display panelshown in FIG. 9 . The liquid crystal display panel 000 may furtherinclude: a sealant frame 500 and a strip-shaped barrier 600 disposedbetween the first substrate 100 and the second substrate 200. Thesealant frame 500 includes a liquid crystal inlet 501. The strip-shapedspacer 400, the liquid crystal layer 300 and the strip-shaped barrier600 in the liquid crystal display panel 000 are all disposed in the areaenclosed by the sealant frame 500, and the strip-shaped barrier 600 isdisposed close to the liquid crystal inlet 501. In this way, when theliquid crystal is poured into the liquid crystal display panel 000through the liquid crystal inlet 501, the strip-shaped barrier 600 canreduce the speed of the poured liquid crystal flow and change theflowing direction of the poured liquid crystal flow, so that the pouredliquid crystal flow flows evenly into the sealant frame 500 from bothsides of the strip-shaped barrier 600. Therefore, the impact of theliquid crystal flow on film layers on the substrate is reduced, theprobability of filling bubbles occurring when the liquid crystal ispoured is reduced, and the yield of the liquid crystal display panel isimproved.

In some embodiments, as shown in FIG. 11 , the extending direction ofthe strip-shaped barrier 600 is parallel to the direction of the openingsurface of the liquid crystal inlet 501 in the sealant frame 500, andthe extending length of the strip-shaped barrier 600 is less than thewidth of the liquid crystal inlet 501. In this way, it is ensured thatthe liquid crystal molecules are poured into the sealant frame 500smoothly.

It should be noted that, the strip-shaped barrier 600 and thestrip-shaped spacer 400 are arranged in the same layer and made from thesame material. That is, the strip-shaped barrier 600 and thestrip-shaped spacer 400 are formed by a one-time patterning process,which may include: photoresist coating, exposure, development, etching,and photoresist stripping.

In the embodiments of the present disclosure, referring to FIG. 12 ,FIG. 12 is a top view of another substrate according to an embodiment ofthe present disclosure. The liquid crystal display panel 000 may furtherinclude a sealing strip 502 connected to the sealant frame 500, and thesealing strip 502 is configured to seal the liquid crystal inlet 501.For example, by sealing the liquid crystal inlet 501 with the sealingstrip 502 after the liquid crystal is poured into the sealant frame 500through the liquid crystal inlet 501, the liquid crystal may beprevented from flowing out of the liquid crystal display panel 000.

In the present disclosure, as shown in FIG. 10 , one of the firstsubstrate 100 and the second substrate 200 in the liquid crystal displaypanel 000 may have a black matrix 102. The embodiment of the presentdisclosure is illustrated by taking an example in which the black matrix102 is disposed in the first substrate 100. Orthographic projections ofthe first signal line 101 and the second signal line 201 on the targetbase are within the orthographic projection of the black matrix 102 onthe target base. Since both of the first signal line 101 and the secondsignal line 201 are made of a reflective metal material, when theorthographic projections of the first signal line 101 and the secondsignal line 201 on the target base are within the orthographicprojection of the black matrix 102 on the target base, the black matrix102 can shield the first signal line 101 and the second signal line 102,so as to avoid the problem of the poor display effect of the liquidcrystal display panel due to reflection of ambient light by the firstsignal line 101 and the second signal line 102.

In the embodiment of the present disclosure, the orthographic projectionof the strip-shaped spacer 400 on the target base is within theorthographic projection of the black matrix 102 on the target base. Forexample, the width of the strip-shaped spacer 400 may be 6 μm, and thewidth of the black matrix 102 may be 6.5 μm. Since the arrangement ofliquid crystal molecules in the liquid crystal layer 300 disposed nearthe strip-shaped spacer 400 may be disordered, when the orthographicprojection of the strip-shaped spacer 400 on the target base is withinthe orthographic projection of the black matrix 102 on the target base,the black matrix 102 may shield light reflected by disordered liquidcrystal molecules near the strip-shaped spacer 400, which can improvethe contrast of the liquid crystal display panel 000, and improve thedisplay effect of the liquid crystal display panel 000.

Optionally, the strip-shaped spacer 400 in the liquid crystal displaypanel 000 is fixedly connected to the substrate including the blackmatrix 102. In some embodiments, when the black matrix 102 is integratedin the first substrate 100, the strip-shaped spacers 400 are fixedlyconnected to the first substrate 100, that is, the strip-shaped spacers400 are formed on the first substrate 100. In this case, when thedisplay panel is not pressed, the strip-shaped spacer 400 does notcontact the second substrate 200; and when the display panel is pressed,the strip-shaped spacer 400 may contact the second substrate 200, sothat the strip-shaped spacer 400 may support the first substrate 100 andthe second substrate 200.

In the embodiment of the present disclosure, the liquid crystal displaypanel 000 may be an actively driven liquid crystal display panel or apassively driven liquid crystal display panel.

When the liquid crystal display panel 000 is an actively driven liquidcrystal display panel, both of the first signal line 101 and the secondsignal line 201 in the liquid crystal display panel 000 may be disposedin the same substrate, for example, both of the first signal line 101and the second signal line 201 may be disposed in the first substrate.

In this case, the first substrate may be referred to as an arraysubstrate. The first substrate may further include: a thin filmtransistor (TFT) and a pixel electrode. The first signal line 101 iselectrically connected to one of a source and a drain of the TFT, thesecond signal line 201 is electrically connected to a gate of the TFT,and the pixel electrode is electrically connected to the other of thesource and the drain of the TFT. The second substrate may include: ablack matrix and a common electrode.

When the liquid crystal display panel 000 is a passively driven liquidcrystal display panel, the first signal line 101 and the second signalline 201 are respectively disposed in the first substrate 100 and thesecond substrate 200 which are disposed opposite to each other.

For the structure of the first substrate 100, referring to FIG. 9 , FIG.10 and FIG. 13 , FIG. 13 is a top view of the first substrate of theliquid crystal display panel shown in FIG. 9 . The first substrate 100in the liquid crystal display panel 000 may further include: a firstbase 103, and the plurality of first signal lines 101, a firstinsulating layer 104 and a plurality of first strip-shaped electrodes105 disposed on the first base 103 and stacked in a directionperpendicular to and going away from the first base 103. The pluralityof first signal lines 101 are electrically connected in one-to-onecorrespondence to the plurality of first strip-shaped electrodes 105,and the extending direction of the first signal line 101 is parallel tothe extending direction of a corresponding first strip-shaped electrode105.

For example, the first signal line 101 includes a plurality of firstconnecting portions 101 a, the first insulating layer 104 includes aplurality of first vias V1 in one-to-one correspondence with theplurality of first connecting portions 101 a. The first connectingportion 101 a may be electrically connected to the corresponding firststrip-shaped electrode 105 through a corresponding first via V1. In thisway, the first signal line 101 may be electrically connected to thecorresponding first strip-shaped electrode 105 through the plurality offirst connecting portions 101 a. Since the material of the firststrip-shaped electrode 105 may be a transparent conductive material suchas indium tin oxide (ITO) or indium zinc oxide (IZO) with a relativelylarge resistance, when the first signal line 101 is electricallyconnected to the corresponding first strip-shaped electrode 105 throughthe plurality of first connecting portions 101 a, the first signal line101 may apply electrical signals to the first strip-shaped electrode 105at multiple positions, so that the electrical signals applied on thefirst strip-shaped electrode 105 have the same voltage at differentpositions.

When the black matrix 102 is integrated in the first substrate 100, theblack matrix 102 may be disposed between the first base 103 and thefirst signal line 101. In addition, since the black matrix 102 also hascertain conductivity, the black matrix 102 and the first signal line 101needs to be insulated from each other by a third insulating layer 106.

For the structure of the second substrate 200, referring to FIG. 9 ,FIG. 10 and FIG. 14 , FIG. 14 is a top view of the second substrate ofthe liquid crystal display panel shown in FIG. 9 . The second substrate200 in the liquid crystal display panel 000 may further include: asecond base 202, and the plurality of second signal lines 201, a secondinsulating layer 203 and a plurality of second strip-shaped electrodes204 disposed on the second base 202 and stacked in a directionperpendicular to and going away from the second base 202. The pluralityof second signal lines 201 are electrically connected in one-to-onecorrespondence to the plurality of second strip-shaped electrodes 204,and the extending direction of the second signal line 201 is parallel tothe extending direction of a corresponding second strip-shaped electrode204.

In some embodiments, the second signal line 201 includes a plurality ofsecond connecting portions 201 a, and the second insulating layer 203includes a plurality of second vias 203 a in one-to-one correspondencewith the plurality of second connecting portions 201 a. The secondconnecting portion 201 a may be electrically connected to thecorresponding second strip-shaped electrode 204 through a correspondingsecond via 203 a. In this way, the second signal line 201 may beelectrically connected to the corresponding second strip-shapedelectrode 204 through the plurality of second connecting portions 203 a.Since the material of the second strip-shaped electrode 204 may be atransparent conductive material such as ITO or IZO with a relativelylarge resistance, when the second signal line 201 is electricallyconnected to the corresponding second strip-shaped electrode 204 throughthe plurality of second connecting portions 203 a, the second signalline 201 may apply electrical signals to the second strip-shapedelectrode 204 at multiple positions, so that the electrical signalsapplied on the second strip-shaped electrode 204 have the same voltageat different positions.

In the embodiment of the present disclosure, the extending direction ofthe first strip-shaped electrode 105 is perpendicular to the extendingdirection of the second strip-shaped electrode 204. It should be notedthat the area where the orthographic projections of the firststrip-shaped electrode 105 and the second strip-shaped electrode 204 onthe target base overlap is the sub-pixel region 000 a.

Optionally, when the liquid crystal display panel 000 is a passivelydriven liquid crystal display panel, the liquid crystal layer 300 in theliquid crystal display panel 000 may include: bistable cholestericliquid crystal molecules. In this case, the display function may berealized by reflection of ambient light by the bistable cholestericliquid crystal molecules.

In summary, the liquid crystal display panel according to the embodimentof the present disclosure includes: a first substrate and a secondsubstrate arranged opposite to each other, and a liquid crystal layerand a plurality of stripe-shaped spacers disposed between the firstsubstrate and the second substrate. Since the orthographic projectionsof the plurality of strip-shaped spacers on the target base is notoverlapped with the overlapping area between the orthographicprojections of the first signal line and the second signal line on thetarget base, there is only one layer of signal lines at the position ofthe strip-shaped spacer in the liquid crystal display panel, so that thethickness of the strip-shaped spacer between the first substrate and thesecond substrate is relatively uniform. In addition, the contact areabetween the strip-shaped spacer and the first substrate and the contactarea between the strip-shaped spacer and the second substrate arerelatively large, so that the strip-shaped spacer has stronger pressureresistance. In this way, the strip-shaped spacer has a better effect ofsupporting the first substrate and the second substrate, which improvesthe pressure resistance of the liquid crystal display panel, therebyeffectively reducing the probability that the arrangement of the liquidcrystal molecules in the liquid crystal layer changes, and improving thedisplay effect of the liquid crystal display panel.

Referring to FIG. 15 and FIG. 16 , FIG. 15 is a schematic diagram of afilm layer structure of a liquid crystal display panel according toanother embodiment of the present disclosure, and FIG. 16 is a top viewof a substrate in the liquid crystal display panel shown in FIG. 15 .The liquid crystal display panel 000 may include: a first substrate 100and a second substrate 200 disposed opposite to each other, and a liquidcrystal layer 300, a sealant frame 500, and a strip-shaped barrier 600disposed between the first substrate 100 and the second substrate 200.

The sealant frame 500 includes a liquid crystal inlet 501, the liquidcrystal layer 300 and the strip-shaped barrier 600 are disposed in thearea enclosed by the sealant frame 500, and the strip-shaped barrier 600is disposed close to the liquid crystal inlet 501.

In summary, the liquid crystal display panel according to the embodimentof the present disclosure includes: a first substrate and a secondsubstrate disposed opposite to each other, and a liquid crystal layer, asealant frame, and a strip-shaped barrier disposed between the firstsubstrate and the second substrate. The strip-shaped barrier is disposedin the sealant frame and close to the liquid crystal inlet in thesealant frame. In this way, when the liquid crystal is poured into theliquid crystal display panel through the liquid crystal inlet, thestrip-shaped barrier may reduce the speed of the poured liquid crystalflow and change the flowing direction of the poured liquid crystal flow,so that the poured liquid crystal flow flows evenly into the sealantframe 500 from both sides of the strip-shaped barrier. Therefore, theimpact of the liquid crystal flow on the film layer of the substrate isreduced, the probability of poor bubbles occurring when the liquidcrystal is poured is reduced, and the yield of the liquid crystaldisplay panel is improved.

In some embodiments, referring to FIG. 17 , FIG. 17 is a top view ofanother substrate according to another embodiment of the presentdisclosure. The liquid crystal display panel 000 may further include: asealing strip 502 connected to the sealant frame 500. The sealing strip502 is configured to seal the liquid crystal inlet 501. For example, bysealing the liquid crystal inlet 501 with the sealing strip 502 afterthe liquid crystal is poured into the sealant frame 500 through theliquid crystal inlet 501, the liquid crystal can be prevented fromflowing out of the liquid crystal display panel 000.

Optionally, the strip-shaped barrier 600 extends along the direction inwhich the opening surface of the liquid crystal inlet 501 is arranged.

Optionally, the extending length of the strip-shaped barrier 600 is lessthan the width of the liquid crystal inlet 501.

The embodiments of the present disclosure further provide a method formanufacturing a liquid crystal display panel. The method formanufacturing a liquid crystal display panel is applied to manufacturethe liquid crystal display panel shown in FIG. 9 . The method formanufacturing the liquid crystal display panel may include the followingsteps.

In step A, a black matrix, a third insulating layer, a plurality offirst signal lines, a first insulating layer, and a plurality of firststrip-shaped electrodes are formed on a first base to obtain a firstsubstrate.

For example, a black matrix material film is first formed on the firstbase, and a one-time patterning process is performed on the black matrixmaterial film to form the black matrix. Next, a third insulating layeris formed on the first base formed with the black matrix. Then, a firstconductive film may be formed on the third insulating layer, and aone-time patterning process may be performed on the first conductivefilm to form the plurality of first signal lines. Afterwards, a firstinsulating film is formed on the first base formed with the plurality offirst signal lines, and a one-time patterning process is performed onthe first insulating film to form the first insulating layer.Optionally, the material of the first insulating layer may includesilicon dioxide, silicon nitride, or a mixed material of silicon dioxideand silicon nitride. Finally, a second conductive film is formed on thefirst base formed with the first insulating layer, and a one-timepatterning process is performed on the second conductive film to formthe plurality of first strip-shaped electrodes. Optionally, the materialof the plurality of first strip-shaped electrodes may include: ITO orIZO.

It should be noted that the first substrate may be formed through theabove processes. It should also be noted that the one-time patterningprocess in the above embodiment may include: photoresist coating,exposure, development, etching, and photoresist stripping.

In step B, a strip-shaped barrier, a plurality of strip-shaped spacersand a sealant frame are formed on the first substrate.

For example, an organic film is first formed on the plurality of firststrip-shaped electrodes in the first substrate, and a one-timepatterning process is performed on the organic film to form thestrip-shaped barrier and the plurality of strip-shaped spacers. Then, asealant frame material is coated at peripheral edges of the firstsubstrate formed with the strip-shaped barrier and the plurality ofstrip-shaped spacers, to form a sealant frame with a liquid crystalinlet. The strip-shaped barrier and the plurality of strip-shapedspacers are disposed in the area enclosed by the sealant frame, and thestrip-shaped barrier is disposed close to the liquid crystal inlet.

In step C, a plurality of second signal lines, a second insulating layerand a plurality of second strip-shaped electrodes are formed on a secondbase to obtain a second substrate.

For example, a third conductive film is first formed on the second base,and a one-time patterning process is performed on the third conductivefilm to form the plurality of second signal lines. Then, a secondinsulating film is formed on the second base formed with the pluralityof second signal lines, and a one-time patterning process is performedon the second insulating film to form the second insulating layer.Optionally, the material of the second insulating layer may includesilicon dioxide, silicon nitride, or a mixed material of silicon dioxideand silicon nitride. Finally, a fourth conductive film is formed on thesecond base formed with the second insulating layer, and a one-timepatterning process is performed on the fourth conductive film to formthe plurality of second strip-shaped electrodes. Optionally, thematerial of the plurality of second strip-shaped electrodes may include:ITO or IZO.

It should be noted that the second substrate may be formed through theabove processes. It should also be noted that the one-time patterningprocess in the above embodiment may include: photoresist coating,exposure, development, etching, and photoresist stripping.

In step D, the first substrate and the second substrate are disposedopposite to each other, so that the plurality of first strip-shapedelectrodes in the first substrate face the plurality of secondstrip-shaped electrodes in the second substrate.

In some embodiments, after the first substrate and the second substrateare disposed opposite to each other, the extending direction of thefirst strip-shaped electrode is perpendicular to the extending directionof the second strip-shaped electrode.

In step E, liquid crystal is poured into the sealant frame to form aliquid crystal layer.

In some embodiments, the liquid crystal is poured through the liquidcrystal inlet of the sealant frame to form the liquid crystal layer.

In step F, a sealing strip is formed at the liquid crystal inlet in thesealant frame.

In some embodiments, after the liquid crystal is poured into the sealantframe through the liquid crystal inlet, the liquid crystal inlet issealed with the sealing strip, to prevent the liquid crystal fromflowing out of the liquid crystal display panel.

Embodiments of the present disclosure further provide an electronicpaper, which may include the above-mentioned liquid crystal displaypanel. The electronic paper may be a display component of a handwritingboard, an electronic book, an education blackboard or the like.

It should be noted that in the drawings, the dimensions of the layersand areas may be exaggerated for the clarity of the drawings. It can beunderstood that when an element or layer is disposed “on” anotherelement or layer, the element or layer may be directly disposed on theanother element, or there may be an intermediate layer. Further, it canbe understood that when an element or layer is disposed “under” anotherelement or layer, the element or layer may be directly disposed underthe another element, or there may be at least one intermediate layer orelement. Further, it can be understood that when an element or layer isdisposed “between” two layers or two elements, the element or layer maybe the only one between the two layers or two elements, or there may beat least one intermediate layer or element. Similar reference signsrefer to similar elements throughout the whole text.

In the present disclosure, the terms “first” and “second” are merelyused for descriptive purposes, and cannot be understood as indicating orimplying relative importance. The term “a plurality of” refers to two ormore, unless specifically defined otherwise.

Described above are merely optional embodiments of the presentdisclosure, and are not intended to limit the present disclosure. Withinthe spirit and principles of the disclosure, any modifications,equivalent substitutions, improvements, and the like are within theprotection scope of the present disclosure.

What is claimed is:
 1. A liquid crystal display panel, comprising aplurality of first signal lines and a plurality of second signal lines,wherein the plurality of first signal lines and the plurality of secondsignal lines are arranged to intersect, the plurality of first signallines and the plurality of second signal lines are configured to definea plurality of sub-pixel regions on the liquid crystal display panel,the sub-pixel region comprising four boundaries; the liquid crystaldisplay panel comprising: a first substrate and a second substratedisposed opposite to each other; and a liquid crystal layer and aplurality of strip-shaped spacers disposed between the first substrateand the second substrate, the strip-shaped spacer extending along oneboundary of the sub-pixel region, wherein there is an overlapping areabetween an orthographic projection of the first signal line on a targetbase and an orthographic projection of the second signal line on thetarget base, an orthographic projection of the strip-shaped spacer onthe target base overlaps with a non-overlapped area between theorthographic projection of the first signal line on the target base andthe orthographic projection of the second signal line on the targetbase, and the target base is a base of one of the first substrate andthe second substrate; wherein the first substrate comprises: a firstbase, and the plurality of first signal lines, a first insulating layerand a plurality of first strip-shaped electrodes disposed on the firstbase and stacked in a direction perpendicular to and going away from thefirst base, wherein an extending direction of the first signal line isparallel to an extending direction of a corresponding first strip-shapedelectrode; and wherein the second substrate comprises: a second base,and the plurality of second signal lines, a second insulating layer anda plurality of second strip-shaped electrodes disposed on the secondbase and stacked in a direction perpendicular to and going away from thesecond base, wherein an extending direction of the second signal line isparallel to an extending direction of a corresponding secondstrip-shaped electrode.
 2. The liquid crystal display panel according toclaim 1, wherein the plurality of strip-shaped spacers comprises: fourstrip-shaped spacers corresponding to the four boundaries of thesub-pixel region, and the strip-shaped spacer extends along acorresponding boundary of the sub-pixel region.
 3. The liquid crystaldisplay panel according to claim 2, wherein one strip-shaped spacer isdisposed between any two adjacent sub-pixel regions.
 4. The liquidcrystal display panel according to claim 3, wherein a length of thestrip-shaped spacer ranges from one-third to one-half of a length of thecorresponding boundary of the sub-pixel region.
 5. The liquid crystaldisplay panel according to claim 1, further comprising: a sealant frameand a strip-shaped barrier disposed between the first substrate and thesecond substrate, wherein the sealant frame comprises a liquid crystalinlet, the strip-shaped barrier, the liquid crystal layer and thestrip-shaped spacer are all disposed in an area enclosed by the sealantframe, and the strip-shaped barrier is disposed close to the liquidcrystal inlet.
 6. The liquid crystal display panel according to claim 5,further comprising: a sealing strip connected to the sealant frame, thesealing strip being configured to seal the liquid crystal inlet.
 7. Theliquid crystal display panel according to claim 6, wherein an extendingdirection of the strip-shaped barrier is parallel to an opening surfaceof the liquid crystal inlet.
 8. The liquid crystal display panelaccording to claim 7, wherein an extending length of the strip-shapedbarrier is less than a width of the liquid crystal inlet.
 9. The liquidcrystal display panel according to claim 5, wherein the strip-shapedbarrier and the strip-shaped spacer are disposed in a same layer andmade of a same material.
 10. The liquid crystal display panel accordingto claim 1, wherein one of the first substrate and the second substratecomprises a black matrix, and the orthographic projection of thestrip-shaped spacer on the target base is within an orthographicprojection of the black matrix on the target base.
 11. The liquidcrystal display panel according to claim 10, wherein the strip-shapedspacer is fixedly connected to the substrate comprising the blackmatrix.
 12. The liquid crystal display panel according to claim 1,wherein the plurality of first signal lines are electrically connectedin one-to-one correspondence to the plurality of first strip-shapedelectrodes.
 13. The liquid crystal display panel according to claim 12,wherein the first signal line comprises a plurality of first connectingportions, the first insulating layer comprises a plurality of first viasin one-to-one correspondence with the plurality of first connectingportions, and the first connecting portion is electrically connected toa corresponding first strip-shaped electrode through a correspondingfirst via.
 14. The liquid crystal display panel according to claim 12,wherein the plurality of second signal lines are electrically connectedin one-to-one correspondence to the plurality of second strip-shapedelectrodes.
 15. The liquid crystal display panel according to claim 14,wherein the second signal line comprises a plurality of secondconnecting portions, the second insulating layer comprises a pluralityof second vias in one-to-one correspondence with the plurality of secondconnecting portions, and the second connecting portion is electricallyconnected to a corresponding second strip-shaped electrode through acorresponding second via.
 16. The liquid crystal display panel accordingto claim 14, wherein the extending direction of the first strip-shapedelectrode is perpendicular to the extending direction of the secondstrip-shaped electrode.
 17. The liquid crystal display panel accordingto claim 14, wherein the liquid crystal layer comprises: bistablecholesteric liquid crystal molecules.
 18. A liquid crystal displaypanel, comprising: a first substrate and a second substrate disposedopposite to each other; and a liquid crystal layer, a sealant frame, anda strip-shaped barrier disposed between the first substrate and thesecond substrate, wherein the sealant frame comprises a liquid crystalinlet, the liquid crystal layer and the strip-shaped barrier aredisposed in an area enclosed by the sealant frame, and the strip-shapedbarrier is disposed close to the liquid crystal inlet; wherein the firstsubstrate comprises: a first base, and the plurality of first signallines, a first insulating layer and a plurality of first strip-shapedelectrodes disposed on the first base and stacked in a directionperpendicular to and going away from the first base, wherein anextending direction of the first signal line is parallel to an extendingdirection of a corresponding first strip-shaped electrode; and whereinthe second substrate comprises: a second base, and the plurality ofsecond signal lines, a second insulating layer and a plurality of secondstrip-shaped electrodes disposed on the second base and stacked in adirection perpendicular to and going away from the second base, whereinan extending direction of the second signal line is parallel to anextending direction of a corresponding second strip-shaped electrode.19. The liquid crystal display panel according to claim 18, furthercomprising: a sealing strip connected to the sealant frame, the sealingstrip being configured to seal the liquid crystal inlet.
 20. Anelectronic paper, comprising: a power supply component and a liquidcrystal display panel, the power supply component being configured tosupply power to the liquid crystal display panel, wherein: the liquidcrystal display panel comprises: a plurality of first signal lines and aplurality of second signal lines, wherein the plurality of first signallines and the plurality of second signal lines are arranged tointersect, the plurality of first signal lines and the plurality ofsecond signal lines are configured to define a plurality of sub-pixelregions in the liquid crystal display panel, the sub-pixel regioncomprising four boundaries; and the liquid crystal display panelcomprises: a first substrate and a second substrate disposed opposite toeach other; and a liquid crystal layer and a plurality of strip-shapedspacers disposed between the first substrate and the second substrate,the strip-shaped spacer extending along one boundary of the sub-pixelregion, wherein there is an overlapping area between an orthographicprojection of the first signal line on a target base and an orthographicprojection of the second signal line on the target base, an orthographicprojection of the strip-shaped spacer on the target base overlaps with anon-overlapped area between the orthographic projection of the firstsignal line on the target base and the orthographic projection of thesecond signal line on the target base, and the target base is a base ofone of the first substrate and the second substrate; wherein the firstsubstrate comprises: a first base, and the plurality of first signallines, a first insulating layer and a plurality of first strip-shapedelectrodes disposed on the first base and stacked in a directionperpendicular to and going away from the first base, wherein anextending direction of the first signal line is parallel to an extendingdirection of a corresponding first strip-shaped electrode; and whereinthe second substrate comprises: a second base, and the plurality ofsecond signal lines, a second insulating layer and a plurality of secondstrip-shaped electrodes disposed on the second base and stacked in adirection perpendicular to and going away from the second base, whereinan extending direction of the second signal line is parallel to anextending direction of a corresponding second strip-shaped electrode.